Weekly view
The default. KPI tiles (average per day, total, change vs last week, top app/category), the category breakdown, and utilization / focus-time / workload by person and team for the selected week.
Daily view
Drill into one day: the session timeline, app and category breakdown, active vs idle, and the largest focus blocks. Use it to explain something the weekly view flagged.
Date handling
Dates are YYYY-MM-DD in your workspace timezone. Reports are day-grained — there is no time-of-day filter in the analytics API.